Multifunctional Lithium Phytate/Carbon Nanotube Double-Layer-Modified Separators for High-Performance Lithium-Sulfur Batteries

Hu, Jing1,2; Wang, Zhenyu1; Yuan, Huimin1; Yang, Mingyang1; Chen, Jingjing2; Fu, Xuelian1; Wang, Zhiqiang1; Luo, Wen1; Huang, Yongcong1; Zhang, Fangchang1; Liu, Chen2; Lu, Zhouguang1

2024-07-01

10.1021/acsami.4c04541

ACS APPLIED MATERIALS & INTERFACES   影响因子和分区

1944-8244

1944-8252

Li dendrite and the shuttle effect are the two primary hindrances to the commercial application of lithium-sulfur batteries (LSBs). Here, a multifunctional separator has been fabricated via successively coating carbon nanotubes (CNTs) and lithium phytate (LP) onto a commercial polypropylene (PP) separator to improve the performance of LSBs. The LP coating layer with abundant electronegative phosphate group as permselective ion sieve not only reduces the polysulfide shuttle but also facilitates uniform Li+ flux through the PP separator. And the highly conductive CNTs on the second layer act as a second collector to accelerate the reversible conversion of sulfide species. The synergistic effect of LP and CNTs further increases the electrolyte wettability and reaction kinetics of cells with a modified separator and suppresses the shuttle effect and growth of Li dendrite. Consequently, the LSBs present much enhanced rate performance and cyclic performance. It is expected that this study may generate an executable tactic for interface engineering of separator to accelerate the industrial application process of LSBs.

lithium-sulfur batteries separatormodification lithium phytate shuttle effect lithium dendrite

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China["2023A1515011055","2022A1515011438"] ; Basic and Applied Basic Research Project of Guangdong Province["JCYJ2022081800003006","JCYJ20220818100418040","JCYJ20220531101013028"] ; Basic Research Project of the Science and Technology Innovation Commission of Shenzhen[U22A20439] ; National Natural Science Foundation of China[2022M722168]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001275873900001

AMER CHEMICAL SOC

20243116781488

Carbon nanotubes ; Coatings ; Electrolytes ; Growth kinetics ; Lithium ; Lithium batteries ; Lithium compounds ; Lithium sulfur batteries ; Polypropylenes ; Reaction kinetics ; Sulfur compounds

Lithium and Alloys:542.4 ; Alkali Metals:549.1 ; Electric Batteries and Fuel Cells:702 ; Primary Batteries:702.1.1 ; Secondary Batteries:702.1.2 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Coating Materials:813.2 ; Organic Polymers:815.1.1 ; Crystalline Solids:933.1

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Shenzhen Univ, Coll Mat Sci & Engn, Guangdong Res Ctr Interfacial Engn Funct Mat, Guangdong Prov Key Lab New Energy Mat Serv Safety, Shenzhen 518060, Peoples R China

Hu, Jing,Wang, Zhenyu,Yuan, Huimin,et al. Multifunctional Lithium Phytate/Carbon Nanotube Double-Layer-Modified Separators for High-Performance Lithium-Sulfur Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2024,16:39215-39224.

Hu, Jing.,Wang, Zhenyu.,Yuan, Huimin.,Yang, Mingyang.,Chen, Jingjing.,...&Lu, Zhouguang.(2024).Multifunctional Lithium Phytate/Carbon Nanotube Double-Layer-Modified Separators for High-Performance Lithium-Sulfur Batteries.ACS APPLIED MATERIALS & INTERFACES,16,39215-39224.

Hu, Jing,et al."Multifunctional Lithium Phytate/Carbon Nanotube Double-Layer-Modified Separators for High-Performance Lithium-Sulfur Batteries".ACS APPLIED MATERIALS & INTERFACES 16(2024):39215-39224.